@misc{indiciae0b67f131073f,
  title = {Reconnaissance geologic map of the Ophir quadrangle, Alaska},
  author = {R. M. Chapman and W. W. Patton and E. J. Moll},
  year = {1985},
  doi = {10.3133/ofr85203},
  url = {https://pubs.usgs.gov/publication/ofr85203},
  note = {Source identifier: ofr85203}
}